CN109578108A - A kind of diagnosis heating device, snorkel, ventilating system and automobile for crankcase breather - Google Patents
A kind of diagnosis heating device, snorkel, ventilating system and automobile for crankcase breather Download PDFInfo
- Publication number
- CN109578108A CN109578108A CN201811602007.5A CN201811602007A CN109578108A CN 109578108 A CN109578108 A CN 109578108A CN 201811602007 A CN201811602007 A CN 201811602007A CN 109578108 A CN109578108 A CN 109578108A
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- Prior art keywords
- crankcase
- diagnosis
- air inlet
- inlet pipe
- heating device
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- 238000003745 diagnosis Methods 0.000 title claims abstract description 55
- 238000010438 heat treatment Methods 0.000 title claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000009423 ventilation Methods 0.000 claims description 20
- 238000003032 molecular docking Methods 0.000 claims description 12
- 239000004677 Nylon Substances 0.000 claims description 11
- 229920001778 nylon Polymers 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 230000008450 motivation Effects 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 7
- 230000032683 aging Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 29
- 239000010721 machine oil Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000008246 gaseous mixture Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 210000004262 dental pulp cavity Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/0033—Breather inlet-air filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
- F02B77/083—Safety, indicating, or supervising devices relating to maintenance, e.g. diagnostic device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
- F02M31/13—Combustion air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10314—Materials for intake systems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of diagnosis heating devices for crankcase breather, snorkel, ventilating system and automobile, it includes outer housing, the escape pipe for being connected to crankcase is provided on outer housing, for connecting the conducting wire of PVC valve, ECU connector for being connected to the air inlet pipe of engine charge supervisor and for connecting vehicle ECU, conducting wire is electrically connected with ECU connector, escape pipe is connected to air inlet pipe, air inlet pipe is made from a material that be thermally conductive, diagnostic circuit and heater circuit in parallel are provided in outer housing, diagnostic circuit and heater circuit pass through ECU connector and are electrically connected with vehicle ECU, heater circuit is connect with air inlet pipe.It is the configuration of the present invention is simple, easy to use, it not only ensure that crankcase bleed pipe does not freeze in Han Qu work, also avoid the part quick aging in summer high temperature of existing heating device, while can realize whole process OBD diagnosis in vehicle travel process.
Description
Technical field
The invention belongs to engine aspirating system technical fields more particularly to a kind of diagnosis for crankcase breather to add
Thermal, diagnosis heated type crankcase breather and automobile engine crankcase forced ventilation system.
Background technique
Automobile engine all uses positive crankcase ventilation system to unite at present, the gas blowby generated when by engine operation import into
Gas manifold burns again.When engine operation, the generation of some gas blowby is understood, gas blowby includes unburned mixture, vapor and gives up
Gas, engine load is bigger, and the gas blowby of formation is more.Gas blowby, which enters oil sump, can dilute machine oil, accelerate machine oil oxidation and go bad,
Machine oil performance is caused to decline；Sour gas enters lubricating system in gas blowby, easily leads to components corrosion.In extremely cold climatic environment
Under, when engine load increases, the gaseous mixture that crankcase is sealed in out of cylinder increases, and gas blowby enters by exhaust gas snorkel to be started
Machine inlet end.It when full engine load, at exhaust gas venting tube outlet, meets, is easy with the cold gas in engine air inlet tube
The position in snorkel is caused to freeze.When vehicle continuous operation, freezing can be increasingly severe, may block exhaust gas snorkel.One
Denier exhaust gas is ventilated blockage, and gas blowby of the vehicle still in high-speed cruising, crankcase can not be discharged in time, crankcase pressure by
Edge up height, leads to oil rule pop-up or crankshaft rear oil seal oil leak.It eventually leads to machine oil and excessively high, insufficient lubrication, damage hair is lost
Motivation.
Existing conventional solution for this problem: in the position that crankcase waste gas snorkel and engine intake cross
It setting and installs circuit kit heating device additional, ECU is outputed signal to by environment temperature sensor, ECU determines and exports control signal,
By way of connecting heating resistance wire heating, crankcase waste gas snorkel and engine air inlet tube river conjunction is made to keep appropriate temperature
Degree solves the problem of that engine exhaust gas snorkel under extremely cold climatic environment freezes with this, guarantees vehicle reliability service.Make
1 is had the following disadvantages:, when system breaks down with the program, and OBD diagnostic system is in off-position, therefore can not be in crankshaft
Box ventilation system on-off realizes that OBD is diagnosed in the case where that cannot exempt；2. hot-zone works, due to environment temperature height, electricity adds
Hot cell, which continues heating, can improve environment temperature, reduce the service life of pipeline.
Further, the arrangement trend of existing crankcase breather is walked mostly in reference to boundary arrangement is not fixed
To this flows back after will lead to gaseous mixture condensation, and liquid is caused to accumulate, emulsify at Pcv valve, can block PCV when stopping for a long time
The technical issues of valve, Pcv valve normally-open cannot cause crankcase pressure to increase after booting, machine oil increases.
Further, the existing arrangement for being mounted on each pipeline on engine with supercharger works as vehicle there are following drawback
When anxious deceleration, throttle opening becomes smaller, but the booster reaction time is long, is also running at high speed, therefore will cause ICS intercooler system pressure
Power is excessive, gas leakage will lead to pipeline explosion into atmosphere, when serious.
Summary of the invention
The purpose of the present invention is to provide a kind of diagnosis heating devices for crankcase breather, diagnosis heated type crankshaft
Case snorkel and automobile engine crankcase forced ventilation system can guarantee that automobile engine does not freeze in the area Pao Han, runs heat
Part quick aging is avoided when area, while can realize that whole process OBD is diagnosed in vehicle travel process.
Technical solution provided by the present invention is a kind of diagnosis heating device for crankcase breather comprising shell
Body is provided with the escape pipe for being connected to crankcase, the docking head for connecting PVC valve on the outer housing, for being connected to hair
The air inlet pipe that motivation air inlet is responsible for and the ECU connector for connecting vehicle ECU, the docking head are electrically connected with the ECU connector,
The escape pipe is connected to the air inlet pipe, and the air inlet pipe is made from a material that be thermally conductive, and parallel connection is provided in the outer housing
Diagnostic circuit and heater circuit, the diagnostic circuit and the heater circuit pass through the ECU connector and are electrically connected with vehicle ECU
It connects, the heater circuit is connect with the air inlet pipe.
In a kind of preferred embodiment of the invention, the diagnostic circuit includes shunt resistance.
In a kind of preferred embodiment of the invention, the heater circuit includes concatenated PTC adding thermal resistance and temperature control
Switch.
In a kind of preferred embodiment of the invention, the PTC adding thermal resistance is connect with the air inlet pipe.
In a kind of preferred embodiment of the invention, the temperature detect switch (TDS) is bimetal leaf.
In a kind of preferred embodiment of the invention, the escape pipe and the docking head are arranged in parallel, the air inlet
Pipe is arranged in parallel with the ECU connector, and the escape pipe is arranged vertically with the air inlet pipe.
In a kind of preferred embodiment of the invention, the air inlet pipe is copper pipe.
The invention also discloses a kind of diagnosis heated type crankcase breathers comprising diagnosis heating device above-mentioned is led
Tracheae and PVC valve connector, described gas-guide tube one end with it is described diagnosis heating device escape pipe be connected to, the other end with it is described
The connection of PVC valve connector.
In a kind of preferred embodiment of the invention, the both ends of the gas-guide tube are provided with fast plug.
In a kind of preferred embodiment of the invention, the gas-guide tube includes coaxially arranged nylon tube and insulating layer,
The insulating layer is coated on the nylon tube outer surface.
In a kind of preferred embodiment of the invention, the insulating layer is injection molding in the EPDM of the nylon tube outer surface
Foaming.
The invention also discloses a kind of automobile engine crankcase forced ventilation system, including air cleaner, crankcase,
Engine, the engine are responsible for by engine charge and are connected to the air cleaner, it is characterised in that: the crankcase
It is connected between the air cleaner by diagnosis heated type crankcase breather above-mentioned, the diagnosis heated type crankcase
Snorkel connection is arranged in a vertical direction.
In a kind of preferred embodiment of the invention, be located at diagnosis heated type crankcase breather and air cleaner it
Between engine charge supervisor on be communicated with relief valve escape pipe.
In a kind of preferred embodiment of the invention, also set up between the engine charge supervisor and the crankcase
There is crankcase ventilation blowdown pipe.
The solution have the advantages that: it is the configuration of the present invention is simple, easy to use, by using be integrated with diagnosis road and plus
The diagnosis heating device on hot road not only ensure that crankcase bleed pipe does not freeze in Han Qu work, while also avoid existing
Heating device part quick aging in summer high temperature, simultaneously as being integrated after diagnosis road is in parallel with heating road, the two work shape
State is independent of each other, therefore can realize that whole process OBD is diagnosed in vehicle travel process, and diagnosis heating device of the invention only needs ECU
OBD diagnosis and cold area's heating function can be realized in one interface, saves it and installs occupied space；Further, the present invention is logical
It crosses and heater circuit is designed as concatenated PTC adding thermal resistance and temperature detect switch (TDS) structure, so that control of the ECU to heater circuit be omitted
System, saves ECU interface, reduces engine consumption, at the same when avoiding summer high temperature part quick aging effect；Further
, the present invention has carried out structure optimization to diagnosis heating device, so that its escape pipe and docking head is arranged in parallel, air inlet pipe and ECU
Connector parallel arrangement, escape pipe are arranged vertically with air inlet pipe, this kind of structure is more advantageous to cloth of the diagnosis heating device in vehicle body
It sets, saves occupied space；Further, the invention discloses a kind of diagnosis heated type crankcase breathers, use the crankshaft
The crankcase of case snorkel meets six regulation of state to the OBD diagnostic function of crankcase breather on-off, while can solve cold Qu Qu
Crankcase ventilation pipe ice formation issues, interior band temp control switch, do not need ECU control, and hot-zone overheats after also can avoid power-up heating
The risk of part of damage；Further, gas-guide tube of the invention uses the structure of nylon tube cooperation insulating layer, can more have
Effect ground is kept for the problem of gas after heating；Further, insulating layer is molded using PU, can control contour structures well, is filled
With simple process；Further, the invention also discloses a kind of automobile engine crankcase forced ventilation system, the ventilating systems
Pcv valve, diagnosis heated type crankcase breather and engine charge supervisor be from top to bottom sequentially arranged along the vertical direction, this cloth
It sets and flows back after can preventing crankcase gaseous mixture condensation, cause the gaseous mixture of machine oil and water product at Pcv valve, in winter for a long time
It can freeze when parking and freeze Pcv valve body, Pcv valve is caused to can not work normally, crankcase pressure is excessive, and oil sealing opens；Into one
Step, it is provided with relief valve escape pipe on engine charge supervisor, the effect of relief valve escape pipe is: when vehicle suddenly slows down
When, throttle opening becomes smaller, but the booster reaction time is long, is also running at high speed, and it is excessive to will cause ICS intercooler system pressure, pipeline
The risk of explosion, but increase this pipeline, when cold pressure reaches certain value in the middle, pressure can be let out into gas handling system by relief valve
In；Further, the present invention is responsible between crankcase in engine charge increases crankcase ventilation blowdown pipe, crankcase ventilation
The effect of blowdown pipe is to take gas when crankcase negative pressure is excessive from this pipeline, guarantee that crankcase pressure is maintained at constant model
In enclosing.
Detailed description of the invention
Fig. 1 is a kind of main view of the diagnosis heating device for crankcase breather of the embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of the diagnosis heating device for crankcase breather of the embodiment of the present invention；
Fig. 3 is a kind of schematic diagram for diagnosing heated type crankcase breather of the embodiment of the present invention；
Fig. 4 is a kind of cross-sectional view for diagnosing heated type crankcase breather of the embodiment of the present invention；
Fig. 5 is a kind of shaft side figure for diagnosing heated type crankcase breather of the embodiment of the present invention；
Fig. 6 is a kind of schematic diagram of automobile engine crankcase forced ventilation system of the embodiment of the present invention；
Fig. 7 is a kind of working state schematic representation of the diagnosis heating device for crankcase breather of the embodiment of the present invention；
In figure: 1- outer housing；2- gas-guide tube；3-PVC valve connector；The fast plug of 4-；5- air cleaner；6- engine
Air inlet supervisor；7- relief valve escape pipe；8- crankcase ventilation blowdown pipe；9-PVC valve；1.1- escape pipe；1.2- docking head；1.3-
Air inlet pipe；1.4-ECU connector；2.1- nylon tube；2.2- insulating layer
Specific embodiment
Below in conjunction with attached drawing, the present invention is further illustrated.
As shown in Figure of description, technical solution provided by the present invention is that a kind of diagnosis for crankcase breather adds
Thermal comprising outer housing 1 is provided with escape pipe 1.1 for being connected to crankcase on outer housing 1, for connecting PVC valve
Docking head 1.2, the air inlet pipe 1.3 for being connected to engine charge supervisor and the ECU connector 1.4 for connecting vehicle ECU, connect
First 1.2 are electrically connected with ECU connector 1.4, and escape pipe 1.1 is connected to air inlet pipe 1.3, and air inlet pipe 1.3 is made from a material that be thermally conductive, shell
It is provided in parallel diagnostic circuit and heater circuit in body 1, mutual performance not shadow each other is integrated after diagnosis road is in parallel with road is heated
It rings, diagnostic circuit and heater circuit pass through ECU connector 1.4 and be electrically connected with vehicle ECU, and heater circuit is connect with air inlet pipe 1.3.
Diagnostic circuit includes shunt resistance.Heater circuit includes concatenated PTC adding thermal resistance and temperature detect switch (TDS).PTC adding thermal resistance with into
Tracheae 1.3 connects.Temperature detect switch (TDS) is bimetal leaf.It is the temperature detect switch (TDS) using bimetal leaf as the temperature module, electric appliance is just
Often when work, bimetal leaf is in free state, and contact is in closed state；When temperature reaches operating temperature, bimetal leaf
It is heated to generate internal stress and act rapidly, contact is opened, circuit is cut off.When electric appliance is cooled to reset temperature, contact is closed automatically
It closes, restores normal operating conditions.Temperature detect switch (TDS) is arranged this programme is closed in 0 DEG C or less heating circuit, heats at 40 DEG C or more
Circuit disconnects.Band temp control switch, does not need ECU control in this programme, and cause thermal damage is crossed in hot-zone after also can avoid power-up heating
The risk of part.
Preferably, escape pipe 1.1 and docking head 1.2 are arranged in parallel, and air inlet pipe 1.3 and ECU connector 1.4 are arranged in parallel, out
Tracheae 1.1 is arranged vertically with air inlet pipe 1.3.
Preferably, air inlet pipe 1.3 is copper pipe.
Preferably, shunt resistance is 3000 Europe resistance.
The invention also includes a kind of diagnosis heated type crankcase breathers comprising diagnosis heating device, 2 and of gas-guide tube
PVC valve connector 3,2 one end of gas-guide tube is connected to the escape pipe 1.1 of diagnosis heating device, the other end and PVC valve connector 3 connect
It is logical.The both ends of gas-guide tube 2 are provided with fast plug 4.Cable is integrated in gas-guide tube 2, cable one end is electrically connected with docking head 1.2
It connects, the other end is electrically connected with PVC valve connector 3, connection PVC valve on PVC valve connector 3.Gas-guide tube 2 includes coaxially arranged Buddhist nun
Imperial pipe 2.1 and insulating layer 2.2, insulating layer 2.2 are coated on 2.1 outer surface of nylon tube.Insulating layer 2.2 is injection molding in nylon tube 2.1
The EPDM of outer surface foams.Outer layer heat insulation sheath is molded using PU, can control contour structures well, assembly technology is simple.
The invention also discloses a kind of automobile engine crankcase forced ventilation systems comprising air cleaner 5, crankshaft
Case, engine, engine is connected to by engine charge supervisor 6 with air cleaner 5, between crankcase and air cleaner 5
It is connected to by diagnosis heated type crankcase breather above-mentioned, diagnosis heated type crankcase breather is connected to cloth along the vertical direction
It sets.Relief valve is communicated on engine charge supervisor 6 between diagnosis heated type crankcase breather and air cleaner 5
Escape pipe 7.Crankcase ventilation blowdown pipe 8 is additionally provided between engine charge supervisor 6 and crankcase.Relief valve escape pipe 7
In the upstream of diagnosis heated type crankcase breather, crankcase ventilation blowdown pipe 8 is located at diagnosis heated type crankcase breather
Downstream, three are arranged in a vertical direction, this kind of arrangement can be effectively saved the installation space, same of three root canal roads occupancy
When can prevent from freezing.
There is disclosed herein a kind of crankcase breather arrangement forms comprising Pcv valve or check valve, crank case vent
Pipe, engine charge supervisor or motor intake manifold, gas in crankcase from Pcv valve or check valve come out after to start into
Gas passage between gas supervisor is to continue to decline in Z-direction, and condensed liquid can avoids along gas passage by gravity shadow
Sound flow downward always, flow to engine charge supervisor in, with air inlet be responsible in gas to engine in burn, avoid gas
It flows back into Pcv valve or check valve, (Pcv valve pressure at two ends is identical, and valve body is closed) liquid icing can incite somebody to action when winter shuts down for a long time
Pcv valve or check valve freeze, then when being switched on, the condition of thawing, Pcv valve or failure of check valve is not achieved in temperature.
The invention also discloses a kind of air inlet pipelines for bringing ICS intercooler system pressure release comprising relief valve, relief valve air inlet
Pipe, relief valve escape pipe, engine charge supervisor.Relief valve uses electronics relief valve, can be controlled by ECU.Go out in intercooler
Placement sensor in tracheae, the pressure for acquiring ICS intercooler system are transmitted to Engine ECU；Air-flow is arranged in intercooler air outlet pipe simultaneously
Shunting function plays as relief valve air inlet pipe in branch.When suddenly slowing down with high load capacity, ICS intercooler system pressure be will increase, pressure
When the collected pressure of sensor is more than certain value, ECU can send open signal to electronics relief valve, and relief valve is opened, high pressure
Gas can be discharged in engine charge supervisor by relief valve air inlet pipe, relief valve and relief valve escape pipe.Gas handling system pressure
Increase, negative pressure becomes smaller, and engine sucks gas from atmosphere and tails off.Increase slowing effect, keeps ICS intercooler system will not over-voltage.
The above is only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, any to be familiar with
Within the technical scope disclosed by the invention, any changes or substitutions that can be easily thought of by those skilled in the art, should all cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be with protection scope defined by claims
It is quasi-.
Claims (15)
1. a kind of diagnosis heating device for crankcase breather, it is characterised in that: including outer housing (1), the outer housing
(1) escape pipe (1.1) for being connected to crankcase, the docking head (1.2) for connecting PVC valve are provided on, for being connected to hair
The air inlet pipe (1.3) that motivation air inlet is responsible for and the ECU connector (1.4) for connecting vehicle ECU, the docking head (1.2) and institute
ECU connector (1.4) electrical connection is stated, the escape pipe (1.1) is connected to the air inlet pipe (1.3), and the air inlet pipe (1.3) is by leading
Hot material is made, and is provided with diagnostic circuit and heater circuit in parallel in the outer housing (1), the diagnostic circuit and it is described plus
Heater circuit passes through the ECU connector (1.4) and is electrically connected with vehicle ECU, and the heater circuit and the air inlet pipe (1.3) are even
It connects.
2. the diagnosis heating device according to claim 1 for crankcase breather, it is characterised in that: the diagnosis electricity
Road includes shunt resistance.
3. the diagnosis heating device according to claim 1 for crankcase breather, it is characterised in that: the heating electricity
Road includes concatenated PTC adding thermal resistance and temperature detect switch (TDS).
4. the diagnosis heating device according to claim 3 for crankcase breather, it is characterised in that: the PTC adds
Thermal resistance is connect with the air inlet pipe (1.3).
5. the diagnosis heating device according to claim 3 for crankcase breather, it is characterised in that: the temperature control is opened
Closing is bimetal leaf.
6. the diagnosis heating device according to claim 1 for crankcase breather, it is characterised in that: the escape pipe
(1.1) it is arranged in parallel with the docking head (1.2), the air inlet pipe (1.3) and the ECU connector (1.4) are arranged in parallel, described
Escape pipe (1.1) is arranged vertically with the air inlet pipe (1.3).
7. the diagnosis heating device according to claim 1 for crankcase breather, it is characterised in that: the air inlet pipe
It (1.3) is copper pipe.
8. a kind of diagnosis heated type crankcase breather, it is characterised in that: including such as claim 1-7 any one claim
Diagnosis heating device, gas-guide tube (2) and the PVC valve connector (3), described gas-guide tube (2) one end and the diagnosis are heated
Escape pipe (1.1) connection of device, the other end are connected to the PVC valve connector (3).
9. diagnosis heated type crankcase breather according to claim 8, it is characterised in that: the two of the gas-guide tube (2)
End is provided with fast plug (4), and described gas-guide tube (2) one end is examined with PVC valve connector (3) grafting, the other end with described
Disconnected heating device grafting.
10. diagnosis heated type crankcase breather according to claim 8, it is characterised in that: the gas-guide tube (2) includes
Coaxially arranged nylon tube (2.1) and insulating layer (2.2), the insulating layer (2.2) are coated on the nylon tube (2.1) appearance
Face is provided with for PVC valve connector (3) and diagnosis heating to be connected between the nylon tube (2.1) and the insulating layer (2.2)
The conducting wire of the docking head (1.2) of device.
11. diagnosis heated type crankcase breather according to claim 10, it is characterised in that: the insulating layer (2.2)
To be molded the EPDM foaming in the nylon tube (2.1) outer surface.
12. a kind of automobile engine crankcase forced ventilation system, including air cleaner (5), crankcase, engine, described
Engine is connected to by engine charge supervisor (6) with the air cleaner (5), it is characterised in that: the crankcase and institute
It states between air cleaner (5) through the diagnosis heated type crankcase as described in any one of claim 8-11 claim
Snorkel connection, the diagnosis heated type crankcase breather connection are arranged in a vertical direction.
13. automobile engine crankcase forced ventilation system according to claim 12, it is characterised in that: be located at diagnosis and add
Relief valve escape pipe is communicated on engine charge supervisor (6) between hot type crankcase breather and air cleaner (5)
(7)。
14. automobile engine crankcase forced ventilation system according to claim 12, it is characterised in that: the engine
Crankcase ventilation blowdown pipe (8) are additionally provided between air inlet supervisor (6) and the crankcase.
15. a kind of automobile, it is characterised in that: including the automobile engine crankcase forced ventilation as described in claim 12-14
System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811602007.5A CN109578108B (en) | 2018-12-26 | 2018-12-26 | A diagnosis heating device, breather pipe, ventilation system and car for crankcase breather pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811602007.5A CN109578108B (en) | 2018-12-26 | 2018-12-26 | A diagnosis heating device, breather pipe, ventilation system and car for crankcase breather pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109578108A true CN109578108A (en) | 2019-04-05 |
| CN109578108B CN109578108B (en) | 2020-04-03 |
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ID=65931916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811602007.5A Active CN109578108B (en) | 2018-12-26 | 2018-12-26 | A diagnosis heating device, breather pipe, ventilation system and car for crankcase breather pipe |
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| CN (1) | CN109578108B (en) |
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| CN110242453A (en) * | 2019-06-28 | 2019-09-17 | 深圳市森世泰科技有限公司 | A kind of automatic deicer for respirator gas outlet |
| CN110410174A (en) * | 2019-08-12 | 2019-11-05 | 上海大创汽车技术有限公司 | Crankcase ventilation system, engine assembly and fuel combustion type vehicle |
| CN112879183A (en) * | 2021-02-24 | 2021-06-01 | 东风富士汤姆森调温器有限公司 | Heating ventilation pipe and fuel evaporation control system comprising same |
| CN113153489A (en) * | 2021-03-19 | 2021-07-23 | 上海玖通汽车零部件有限公司 | Automatic crankcase heating ventilation unit of control |
| CN113404626A (en) * | 2020-03-17 | 2021-09-17 | 上海汽车集团股份有限公司 | Temperature control system, air filtering air pipe assembly comprising same and engine |
| CN114321533A (en) * | 2021-12-24 | 2022-04-12 | 苏州恩都法汽车系统有限公司 | Multifunctional quick connector structure |
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| CN114321533A (en) * | 2021-12-24 | 2022-04-12 | 苏州恩都法汽车系统有限公司 | Multifunctional quick connector structure |
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